Provided by: tk8.6-doc_8.6.14-1build1_all 

NAME
Tk_GetJustifyFromObj, Tk_GetJustify, Tk_NameOfJustify - translate between strings and justification
styles
SYNOPSIS
#include <tk.h>
int
Tk_GetJustifyFromObj(interp, objPtr, justifyPtr)
int
Tk_GetJustify(interp, string, justifyPtr)
const char *
Tk_NameOfJustify(justify)
ARGUMENTS
Tcl_Interp *interp (in) Interpreter to use for error reporting, or NULL.
Tcl_Obj *objPtr (in/out) String value contains name of justification style - one of “left”,
“right”, or “center” - or a unique abbreviation of one. The
internal rep will be modified to cache corresponding justify value.
const char *string (in) Same as objPtr except description of justification style is passed
as a string.
int *justifyPtr (out) Pointer to location in which to store justify value corresponding to
objPtr or string.
Tk_Justify justify (in) Justification style (one of the values listed below).
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DESCRIPTION
Tk_GetJustifyFromObj places in *justifyPtr the justify value corresponding to objPtr's value. This value
will be one of the following:
TK_JUSTIFY_LEFT
Means that the text on each line should start at the left edge of the line; as a result, the
right edges of lines may be ragged.
TK_JUSTIFY_RIGHT
Means that the text on each line should end at the right edge of the line; as a result, the left
edges of lines may be ragged.
TK_JUSTIFY_CENTER
Means that the text on each line should be centered; as a result, both the left and right edges
of lines may be ragged.
Under normal circumstances the return value is TCL_OK and interp is unused. If objPtr does not contain a
valid justification style or an abbreviation of one of these names, TCL_ERROR is returned, *justifyPtr is
unmodified, and an error message is stored in interp's result if interp is not NULL.
Tk_GetJustifyFromObj caches information about the return value in objPtr, which speeds up future calls to
Tk_GetJustifyFromObj with the same objPtr.
Tk_GetJustify is identical to Tk_GetJustifyFromObj except that the description of the justification is
specified with a string instead of an object. This prevents Tk_GetJustify from caching the return value,
so Tk_GetJustify is less efficient than Tk_GetJustifyFromObj.
Tk_NameOfJustify is the logical inverse of Tk_GetJustify. Given a justify value it returns a statically-
allocated string corresponding to justify. If justify is not a legal justify value, then “unknown
justification style” is returned.
KEYWORDS
center, fill, justification, string
Tk 8.1 Tk_GetJustifyFromObj(3tk)